Salazar, Jackeline , Little, Damon P. , Jaramillo, M. Alejandra , Nixon, Kevin .
New Genus of Canellaceae From The Greater Antilles.
Six genera worldwide have been described in Canellaceae: Cinnamosma, Warburgia, Capsicodendron, Canella, Cinnamodendron, and Pleodendron. Three of these genera - Cinnamodendron, Canella, and Pleodendron - and approximately seven species have been reported for the Antilles. A complete cladistic analysis of genera within Canellaceae was conducted using molecular and morphological data. An analysis using nrITS, matK, rbcL, trnDGUC-trnTGGU, and trnL-trnF data in combination with 49 informative morphological characters was performed to test the monophyly of the family and evaluate the placement and monophyly of the genera. Cinnamodendron was recovered as a polyphyletic group with the Antillean and South American species present in two different clades. The Antillean species form a clade sister to Pleodendron macranthum. The priority of the name is given to the South American Cinnamodendron since the type of the genus is the Brazilian C. axillare Endl. ex Walp. A new genus of Canellaceae is proposed based on Cinnamodendron corticosum Miers, for the Antillean clade. The newly proposed genus, exclusive to the Greater Antilles, is present in Cuba, Hispaniola, and Jamaica. It differs from other genera in the family in having tetramerous flowers with eight petals, eight stamens, four carpels, and four placentae. Its members are found mainly in humid forests on limestone.
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1 - Universidad Autónoma de Santo Domingo (UASD), Escuela de Biología, Zona Universitaria, Santo Domingo, DN, República Dominicana
2 - The New York Botanical Garden, Lewis B. and Dorothy Cullman Program for Molecular Systematics, , NY, 10458 , USA
3 - Universidad Icesi, Biological Sciences, Calle 18 # 122-135, Cali, VA, Colombia
4 - Cornell Univeristy, L. H. BAILEY HORTORIUM, 408 MANN LIBRARY, ITHACA, NY, 14853-4301, USA
Presentation Type: Oral Paper:Papers for Sections
Location: Lindell B/Chase Park Plaza
Date: Monday, July 11th, 2011
Time: 10:30 AM